Diffusion Data in Silicate Melts
Diffusion Data in Silicate Melts
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DOI：
10.2138/rmg.2010.72.8
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发表时间：
2010
影响因子：
--
通讯作者：
Youxue Zhang;H. Ni;Yang Chen
中科院分区：
文献类型：
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作者：
Youxue Zhang;H. Ni;Yang Chen
硅酸盐熔体中原子尺度的扩散在各种岩浆过程中起着至关重要的作用，这一点早已为地质学家所认识（Bowen 1921）。地球化学家已经使用各种方法研究了硅酸盐熔体（包括稳定液体和过冷液体和玻璃）中的扩散，因为微分析工具变得可用（例如，Medford 1973; Jambon and卡龙1976; Magaritz and Hofmann 1978 a，B; Hofmann 1980; Shimizu and Kushiro 1984; Zhang et al. 1991 a; Koepke and Behrens 2001;萨尔et al. 2008）。调查的目的是了解扩散的机制，温度，压力，H2O含量，F O2，和更普遍的熔体组成的扩散系数的影响，并测量地质应用的扩散系数值。现在有一个大型数据库。本章回顾了与岩浆系统有关的扩散数据。在简单系统的熔体扩散，玻璃和陶瓷科学家的兴趣，大量的文献，不包括在这篇评论中，也没有从头算和分子动力学方法计算的扩散系数。本文综述了多组分硅酸盐熔体（本章中使用的术语熔体也包括玻璃）中的文献扩散数据（除了多组分扩散矩阵数据以及H、C、O和稀有气体的数据），包括具有矿物成分的熔体和玻璃。本章补充了硅酸盐熔体中扩散的其他章节，包括H，C和O扩散（Zhang和Ni 2010，本卷），惰性气体扩散（Behrens 2010，本卷），自扩散和示踪扩散的理论和模型（Lesher 2010，本卷）以及多组分扩散（Liang 2010，本卷）。我们在在线补充表1（可在http://www.minsocam.org/MSA/RIM找到）中汇编了关于自身、示踪剂和有效二元扩散的实验数据，其中包含约3600个个体扩散率条目。
Atomic scale diffusion in silicate melts plays a critical role in a variety of magmatic processes, as long recognized by geologists (Bowen 1921). Geochemists have investigated diffusion in silicate melts (including stable liquids and supercooled liquids and glasses) using a variety of methods as micro-analytical tools becoming available (e.g., Medford 1973; Jambon and Carron 1976; Magaritz and Hofmann 1978a,b; Hofmann 1980; Shimizu and Kushiro 1984; Zhang et al. 1991a; Koepke and Behrens 2001; Saal et al. 2008). The investigations were aimed at understanding the mechanisms of diffusion, the effect of temperature, pressure, H2O content, f O2, and more generally melt composition on the diffusivities, and to measure the diffusivity values for geological applications. A large database is now available. This chapter reviews diffusion data relevant to magmatic systems. The large body of literature on diffusion in simple-system melts, of interests to glass and ceramic scientists, is not included in this review, nor are the calculated diffusivities from ab initio and molecular dynamics methods. This review covers literature diffusion data (except multicomponent diffusion matrix data, and those of H, C, O and noble gases) in multicomponent silicate melts (the term melts as used in this chapter also includes glasses), including melts with mineral compositions and including glasses. This chapter complements the other chapters on diffusion in silicate melts, which cover H, C and O diffusion (Zhang and Ni 2010, this volume), noble gas diffusion (Behrens 2010, this volume), theories and models of self and tracer diffusion (Lesher 2010, this volume), and multicomponent diffusion (Liang 2010, this volume). We have compiled experimental data on self, tracer and effective binary diffusion in Online Supplementary Table 1 (found at http://www.minsocam.org/MSA/RIM ), with about 3600 entries of individual diffusivity …